P4 to Git Change 1101351 by skudchad@skudchad_test_win_opencl2 on 2014/11/28 17:32:17

EPR #403782 - IOMMU2/SVM
	- For finegrainsystem, the app can pass a malloced pointer directly to the kernel. Copy pointer directly to the aqlArgBuf without exiting.

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/6378/diff/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpukernel.cpp#269 edit

rocclr/runtime/device/gpu/gpukernel.cpp

@@ -3868,7 +3868,9 @@ HSAILKernel::loadArguments(
                         gpuMem->wait(gpu, WaitOnBusyEngine);
                         memList.push_back(gpuMem);
                     }
-                    else {
+                    // If finegrainsystem is present then the pointer can be malloced by the app and
+                    // passed to kernel directly. If so copy the pointer location to aqlArgBuf
+                    else if ((dev().info().svmCapabilities_ & CL_DEVICE_SVM_FINE_GRAIN_SYSTEM) == 0) {
                         return NULL;
                     }
                     break;